Dear All, I write from Poland. I bought in Netherlands a barn find F150 1983 4,9 L6 aut. RWD. I have a problem with carburetor regulation. There is missing some connection to my carburetor. I guess it is a heating hose connecting carburetor to exhaust manifold? Please correct me if I am wrong. What should be mounted to indicated inlet? Could you advise where on the web I could buy such connection and where to connect on the other end? Please have a look at the below picture. Many thanks for your help.


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Copper line from valve cover on left running behind throat of carb to right side port on carb.

Port I am speaking to is above the spring. You can see the copper line coming from above and taking a 90 degree turn to port
I have attached two photos from my 83 which has the 8 cylinder engine. I am no mechanic but am hoping to help. Your carb could be configured differently. I am wondering if it is not just for the PCV running from the valve cover. It is just a guess but maybe the pictures will help. My understanding is that era of truck had a lot of efforts made to control emissions and improve gas mileage so there is a lot of extra vacuum hoses and the like on those models.

Good luck

 

I think that's part of the factory choke to get hot air faster ? I have a 84 F150 300 six cylinder and it's Not on my Carburetor??

 

Yes, it's the choke heat tube.

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